Methods, systems, and devices are described for wireless communications. A first CSI reporting configuration may be used for communications using TTIs of a first duration and a second CSI reporting configuration may be used for communications using TTIs of a second duration. A determination of whether to report CSI based on the first and/or second configuration may be made, and a CSI report may be transmitted based on the determination. In some cases, CSI for the first CSI reporting configuration is determined differently than CSI for the second CSI reporting configuration. For instance, the CSI reporting configurations may use different reference resources and/or reference signal resources when calculating respective CSI. In some cases, the first and second CSI reporting configurations may be configured as a first CSI process and a second CSI process, which may be operated either independently or jointly.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method for wireless communication at a wireless device, comprising: determining a location of a channel state information (CSI) resource and a CSI reporting resource for a CSI report, the CSI report being based on the CSI resource, the CSI report being based on one of a first CSI reporting configuration or a second CSI reporting configuration, the first CSI reporting configuration being associated with transmission time intervals (TTIs) of a first duration, the second CSI reporting configuration being associated with TTIs of a second duration, wherein the CSI reference resource spans one symbol or two symbols; and transmitting the CSI report in accordance with the determination.
This invention relates to wireless communication systems, specifically methods for efficiently transmitting channel state information (CSI) reports from a wireless device. The problem addressed is optimizing CSI reporting to accommodate different transmission time intervals (TTIs) while ensuring accurate channel measurements. The method involves determining the location of a CSI resource and a CSI reporting resource for generating a CSI report. The CSI report is based on either a first or second CSI reporting configuration, where the first configuration uses TTIs of a first duration and the second uses TTIs of a second duration. The CSI reference resource spans either one or two symbols, depending on the configuration. The wireless device then transmits the CSI report according to the determined locations. This approach allows for flexible CSI reporting that adapts to varying TTI lengths, improving communication efficiency and reliability in dynamic wireless environments. The method ensures that the CSI report accurately reflects the channel conditions by aligning the reporting with the appropriate CSI resource and TTI configuration.
2. The method of claim 1 , further comprising: identifying a first pattern of first non-zero power (NZP) reference signal resources and first IM resources for the first CSI reporting configuration, wherein the first pattern is associated with a first periodicity and a first offset; and determining a second pattern of second NZP reference signal resources and second IM resources for the second CSI reporting configuration, wherein the second pattern is associated with a second periodicity and a second offset.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting by managing interference measurement (IM) and non-zero power (NZP) reference signal resources. The problem addressed is the need to efficiently allocate and coordinate these resources to avoid interference and ensure accurate CSI feedback in multi-user environments. The method involves configuring two CSI reporting configurations for a user equipment (UE). For each configuration, a pattern of NZP reference signal resources and IM resources is defined. The first pattern has a first periodicity and offset, while the second pattern has a second periodicity and offset. These patterns are used to schedule the transmission of reference signals and interference measurements, allowing the UE to report CSI based on the received signals while accounting for interference conditions. The patterns ensure that the NZP reference signals and IM resources are properly aligned in time and frequency to support accurate CSI reporting. By adjusting the periodicity and offset of each pattern, the system can optimize resource allocation to minimize interference and improve communication reliability. This approach is particularly useful in scenarios where multiple UEs are sharing the same frequency resources, as it helps maintain signal integrity and performance.
3. The method of claim 2 , wherein the second periodicity is higher than the first periodicity.
A system and method for optimizing data transmission in a wireless communication network addresses the challenge of efficiently managing data transfer between devices while minimizing power consumption and latency. The invention involves a communication protocol that adjusts transmission intervals based on network conditions and device requirements. The method includes a first transmission periodicity for initial data exchanges and a second, higher transmission periodicity for subsequent data exchanges, ensuring faster response times when needed. The system dynamically selects the appropriate periodicity based on factors such as signal strength, data priority, and device power levels. This adaptive approach improves energy efficiency and reduces latency, particularly in battery-powered devices. The method also includes error detection and correction mechanisms to ensure reliable data transfer. By varying the transmission intervals, the system balances performance and power consumption, making it suitable for applications like IoT devices, sensor networks, and mobile communications. The invention enhances overall network efficiency by dynamically adjusting transmission rates in response to real-time conditions.
4. The method of claim 2 , wherein the first pattern and the second pattern are completely overlapping, the first periodicity is equivalent to the second periodicity, and the second offset is equivalent to the first offset.
This invention relates to pattern-based signal processing, specifically for systems where two periodic patterns are analyzed or generated. The problem addressed involves ensuring precise alignment and synchronization between two overlapping periodic patterns, which is critical in applications such as signal modulation, data encoding, or sensor synchronization. The invention describes a method where a first pattern and a second pattern are completely overlapping, meaning they occupy the same spatial or temporal domain without any offset. Both patterns share the same periodicity, ensuring their repeating intervals are identical. Additionally, the second pattern's offset is equivalent to the first pattern's offset, meaning their starting points or phase alignments are synchronized. This ensures that the two patterns are perfectly aligned in both frequency and phase, eliminating any misalignment that could degrade system performance. The method is particularly useful in applications requiring high-precision synchronization, such as communication systems, sensor arrays, or signal processing pipelines where maintaining phase coherence between overlapping patterns is essential. By enforcing identical periodicity and offset, the invention ensures that the two patterns remain perfectly synchronized, improving signal integrity and system reliability.
5. The method of claim 2 , further comprising: determining a third pattern of zero power (ZP) reference signal resources based at least in part on the first pattern; and determining a fourth pattern of zero power (ZP) reference signal resources based at least in part on the second pattern.
This invention relates to wireless communication systems, specifically methods for managing zero power (ZP) reference signal resources in a network. The problem addressed is the efficient allocation and avoidance of interference in wireless communication channels, particularly in scenarios where multiple devices or cells share the same frequency resources. The method involves determining two initial patterns of ZP reference signal resources, referred to as a first pattern and a second pattern. These patterns define specific time-frequency resources that are reserved for reference signals but intentionally left untransmitted to avoid interference. The method further includes determining a third pattern of ZP reference signal resources based on the first pattern and a fourth pattern based on the second pattern. These additional patterns provide flexibility in resource allocation, allowing the system to adapt to varying interference conditions or network configurations. The determination of these patterns may involve analyzing existing resource allocations, interference levels, or other network parameters to optimize performance. By dynamically adjusting ZP reference signal resources, the method helps reduce interference and improve communication reliability in shared wireless environments. The approach is particularly useful in advanced wireless systems where multiple users or cells operate in close proximity.
6. The method of claim 2 , wherein the first NZP reference signal resources overlap with the second NZP reference signal resources.
This invention relates to wireless communication systems, specifically to the configuration and management of non-zero power (NZP) reference signal resources to improve channel state information (CSI) feedback accuracy and reduce interference. The problem addressed is the inefficient use of NZP reference signal resources, which can lead to overlapping assignments, causing interference and degrading communication performance. The method involves configuring multiple NZP reference signal resources for a user equipment (UE) in a wireless network. The first set of NZP reference signal resources is allocated for downlink channel estimation, while the second set is used for uplink channel sounding. The key innovation is that these resources are allowed to overlap in time and/or frequency domains. Overlapping the resources enables more efficient use of available spectrum and reduces the need for additional signaling overhead. The overlapping configuration is dynamically adjusted based on network conditions, such as traffic load and interference levels, to optimize performance. The method also includes mechanisms to mitigate interference caused by overlapping resources, such as power control and beamforming techniques. By coordinating the allocation and scheduling of overlapping NZP reference signals, the system ensures reliable channel estimation and feedback while minimizing resource wastage. This approach enhances spectral efficiency and improves overall network performance in dense wireless environments.
7. The method of claim 2 , wherein a resource element density of the second pattern is lower than a resource element density of the first pattern.
This invention relates to wireless communication systems, specifically to methods for configuring resource elements in communication patterns to improve efficiency. The problem addressed is optimizing resource allocation in wireless networks to balance performance and overhead. The invention involves using two distinct patterns for resource element distribution, where the second pattern has a lower resource element density than the first. Resource elements are fundamental units of data transmission in wireless systems, and their density affects signal quality, interference, and overall network efficiency. By adjusting the density between patterns, the system can dynamically adapt to varying channel conditions or traffic demands. The first pattern, with higher density, may be used for high-priority or high-throughput transmissions, while the second pattern, with lower density, could reduce interference in congested areas or conserve resources during low-traffic periods. The method ensures efficient resource utilization while maintaining reliable communication. The invention is particularly useful in 5G and beyond networks, where flexible resource allocation is critical for supporting diverse services and devices.
8. The method of claim 1 , further comprising: identifying a first plurality of CSI processes associated with the first CSI reporting configuration and a second plurality of CSI processes associated with the second CSI reporting configuration; receiving a request for the CSI report; identifying the number of supported CSI processes as a maximum number of supported CSI processes; and updating measurements for a first subset of the first plurality of CSI process or a second subset of the second plurality of CSI processes, or both, based at least in part on the maximum number of supported CSI processes.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting in scenarios where multiple CSI reporting configurations are active. The problem addressed is the efficient management of CSI processes when the number of supported processes is limited, ensuring optimal resource utilization and accurate channel feedback. The method involves managing CSI processes associated with at least two distinct CSI reporting configurations. A first set of CSI processes is linked to a first reporting configuration, while a second set is linked to a second reporting configuration. Upon receiving a request for a CSI report, the system determines the maximum number of CSI processes that can be supported. Based on this limit, measurements for a subset of the first set, a subset of the second set, or both, are updated. This ensures that the available CSI processes are allocated efficiently, preventing resource exhaustion and maintaining accurate channel state feedback. The solution dynamically adjusts CSI measurements to comply with hardware or protocol constraints, optimizing performance in multi-configuration environments. This approach is particularly useful in advanced wireless systems where multiple CSI reporting configurations coexist, such as in 5G or beyond-5G networks. The method ensures that critical channel state information is prioritized while adhering to system limitations.
9. The method of claim 8 , wherein updating the measurement comprises updating a lowest-indexed CSI process of the first plurality of CSI processes.
A method for managing channel state information (CSI) processes in a wireless communication system addresses the challenge of efficiently updating CSI measurements to improve communication reliability and performance. The method involves maintaining multiple CSI processes, each associated with a different index, to track channel conditions between a transmitter and receiver. When an update to a CSI measurement is required, the method prioritizes updating the CSI process with the lowest index among the available processes. This ensures that the most critical or foundational channel state information is refreshed first, maintaining accurate and up-to-date channel estimates for optimal signal transmission. The method may be part of a broader system that dynamically adjusts CSI processes based on changing environmental conditions or communication demands, enhancing overall system efficiency and reliability. By focusing on the lowest-indexed CSI process, the method ensures that the most essential channel information is always current, reducing the risk of outdated measurements degrading communication quality. This approach is particularly useful in environments with rapidly varying channel conditions, such as mobile or high-mobility scenarios.
10. The method of claim 8 , wherein updating the measurement comprises updating a lowest-indexed CSI process of the first plurality of CSI processes and a lowest-indexed CSI process of the second plurality of CSI processes.
This invention relates to wireless communication systems, specifically methods for managing channel state information (CSI) processes in multi-user multiple-input multiple-output (MU-MIMO) environments. The problem addressed is the efficient updating of CSI processes to maintain accurate channel state information while minimizing computational overhead and latency in dynamic wireless networks. The method involves a wireless communication system where a base station communicates with multiple user devices using MU-MIMO techniques. The system maintains two sets of CSI processes: a first plurality of CSI processes associated with a first set of user devices and a second plurality of CSI processes associated with a second set of user devices. Each CSI process represents a channel state estimate between the base station and a user device. The method updates the CSI processes by selecting and updating the lowest-indexed CSI process in each set. The lowest-indexed CSI process is the one with the smallest identifier or priority in the respective set. This selective updating ensures that the most critical or frequently used channel state information is refreshed first, optimizing resource allocation and reducing unnecessary computations. The approach helps maintain system performance while adapting to changing channel conditions, particularly in scenarios where user devices move or experience varying interference levels. The method is designed to work within existing MU-MIMO frameworks, ensuring compatibility with standard wireless communication protocols.
11. The method of claim 1 , further comprising: identifying a first plurality of CSI processes associated with the first CSI reporting configuration and a second plurality of CSI processes associated with the second CSI reporting configuration; receiving a request for the CSI report, wherein the request is associated with the second CSI reporting configuration; identifying the number of supported CSI processes as a maximum number of supported CSI processes for the second CSI reporting configuration; and updating measurements for a first subset of the second plurality of CSI processes based at least in part on the maximum number of supported CSI processes for the second CSI reporting configuration.
In wireless communication systems, channel state information (CSI) reporting is essential for optimizing data transmission by providing feedback on channel conditions. However, managing multiple CSI reporting configurations and processes can be resource-intensive, especially when the number of supported CSI processes is limited. This invention addresses the challenge of efficiently handling CSI processes when a request is received for a CSI report associated with a specific reporting configuration. The method involves identifying a first set of CSI processes linked to a first CSI reporting configuration and a second set of CSI processes linked to a second CSI reporting configuration. Upon receiving a request for a CSI report tied to the second configuration, the system determines the maximum number of supported CSI processes for that configuration. Based on this limit, the system updates measurements for a subset of the second set of CSI processes, ensuring that the number of processes does not exceed the supported limit. This approach optimizes resource usage by dynamically adjusting the number of active CSI processes according to the system's capabilities, improving efficiency in wireless communication.
12. The method of claim 1 , further comprising: identifying a first plurality of CSI processes associated with the first CSI reporting configuration and a second plurality of CSI processes associated with the second CSI reporting configuration; receiving a request for the CSI report, wherein the request is associated with the first CSI reporting configuration; identifying the number of supported CSI processes as a maximum number of supported CSI processes for the first CSI reporting configuration; and updating measurements for a first subset the first plurality of CSI processes based at least in part on the maximum number of supported CSI processes for the first CSI reporting configuration.
In wireless communication systems, channel state information (CSI) reporting is essential for optimizing data transmission by providing feedback on channel conditions. However, managing multiple CSI reporting configurations and processes can be resource-intensive, leading to inefficiencies in measurement and reporting. This invention addresses the challenge of efficiently handling CSI processes across different reporting configurations by dynamically adjusting measurements based on supported capabilities. The method involves identifying multiple CSI processes associated with different CSI reporting configurations. When a request for a CSI report is received, the system determines the maximum number of supported CSI processes for the specified configuration. Based on this limit, measurements for a subset of the CSI processes are updated, ensuring that only the most relevant or highest-priority processes are processed. This approach optimizes resource usage by avoiding unnecessary measurements and reports, improving overall system efficiency. The solution is particularly useful in scenarios where multiple CSI configurations coexist, such as in advanced wireless networks like 5G or beyond, where dynamic adaptation to varying channel conditions is critical. By selectively updating measurements, the method ensures timely and accurate CSI feedback while minimizing computational overhead.
13. The method of claim 1 , further comprising: associating a first CSI process with the first CSI reporting configuration and a second CSI process with the second CSI reporting configuration.
This invention relates to wireless communication systems, specifically methods for managing channel state information (CSI) reporting in multi-antenna environments. The problem addressed is the need for efficient and accurate CSI feedback to support advanced techniques like beamforming and spatial multiplexing, while minimizing overhead and complexity in the communication system. The method involves configuring multiple CSI reporting processes for a user equipment (UE) in a wireless network. A first CSI reporting configuration is established for a first CSI process, and a second CSI reporting configuration is established for a second CSI process. These configurations define parameters such as reporting periodicity, resource allocation, and feedback content for each process. The first and second CSI processes operate independently, allowing the UE to provide distinct CSI feedback for different transmission scenarios or antenna configurations. This enables the network to adaptively optimize data transmission based on varying channel conditions and system requirements. The method ensures that CSI feedback is tailored to specific use cases, improving overall system performance and reliability.
14. The method of claim 13 , further comprising: generating a first CSI report for the first CSI process or a second CSI report for the second CSI process, or both, wherein the CSI report comprises the first CSI report or the second CSI report, or both.
This invention relates to wireless communication systems, specifically methods for generating and utilizing channel state information (CSI) reports in multi-process CSI frameworks. The problem addressed involves efficiently managing and reporting CSI in scenarios where multiple CSI processes are active, such as in advanced wireless networks like 5G or beyond, where different CSI processes may serve different purposes (e.g., beam management, data transmission optimization). The method involves operating a first CSI process and a second CSI process, where each process may be configured for distinct purposes or operating conditions. The method further includes generating CSI reports for these processes. Specifically, a first CSI report is generated for the first CSI process, a second CSI report is generated for the second CSI process, or both reports may be generated simultaneously. The CSI report(s) may include one or both of the first and second CSI reports, depending on the system requirements or configuration. This allows the system to flexibly adapt to different communication needs, such as supporting multiple beams, different modulation schemes, or varying channel conditions, while ensuring accurate and timely CSI feedback for optimal performance. The method may be implemented in user equipment (UE) or other network devices to enhance communication reliability and efficiency.
15. The method of claim 13 , wherein the first CSI process is operated independently from the second CSI process.
A method for wireless communication involves managing channel state information (CSI) processes to improve system efficiency. The method addresses the challenge of optimizing CSI feedback in wireless networks, particularly in scenarios where multiple CSI processes are used. The invention provides a solution by operating a first CSI process independently from a second CSI process. This independence allows for flexible and efficient CSI reporting, reducing overhead and improving resource utilization. The first CSI process may be configured to handle specific channel conditions or user equipment (UE) requirements, while the second CSI process operates separately to manage other aspects of the communication link. By decoupling these processes, the system can adapt dynamically to varying network conditions, enhancing overall performance. The method ensures that CSI feedback is generated and transmitted without interference between the processes, enabling more accurate and timely channel state reporting. This approach is particularly useful in advanced wireless systems, such as 5G and beyond, where multiple CSI processes are employed to support diverse communication needs. The independent operation of the CSI processes allows for better coordination between the base station and the UE, leading to improved data throughput and reliability.
16. The method of claim 15 , wherein the first CSI process for the first CSI reporting configuration is triggered independently from the second CSI process for the second CSI reporting configuration.
This invention relates to wireless communication systems, specifically methods for managing channel state information (CSI) reporting configurations. The problem addressed is the need for efficient and flexible CSI reporting in scenarios where multiple CSI processes are active, ensuring accurate channel feedback without unnecessary overhead or interference. The method involves a wireless device receiving multiple CSI reporting configurations, each associated with a different CSI process. The first CSI process for the first CSI reporting configuration is triggered independently from the second CSI process for the second CSI reporting configuration. This independence allows the wireless device to generate and report CSI for each configuration without being constrained by the timing or conditions of the other process. The CSI reporting configurations may include parameters such as reporting periodicity, resource allocation, and feedback type, which are tailored to the specific requirements of each process. The wireless device generates CSI reports based on these configurations and transmits them to a network node, such as a base station, to support efficient scheduling and beamforming decisions. The independent triggering ensures that the CSI processes do not interfere with each other, improving overall system performance. This method is particularly useful in advanced wireless systems like 5G and beyond, where multiple CSI processes may be required for different purposes, such as beam management and link adaptation.
17. The method of claim 15 , wherein the first CSI process for the first CSI reporting configuration is associated with a first periodicity and a first offset, and wherein the second CSI process for the second CSI reporting configuration is associated with a second periodicity and a second offset.
This invention relates to wireless communication systems, specifically methods for configuring and managing channel state information (CSI) reporting processes in a user equipment (UE) device. The problem addressed is the need for efficient and flexible CSI reporting to support advanced wireless communication techniques such as beamforming and multiple-input multiple-output (MIMO) transmissions. The invention describes a method for configuring multiple CSI processes in a UE, where each process is associated with distinct reporting configurations. A first CSI process is configured with a first periodicity and a first offset for reporting channel state information, while a second CSI process is configured with a second periodicity and a second offset. These configurations allow the UE to report CSI at different intervals and timings, enabling the network to adapt to varying channel conditions and traffic demands. The method ensures that the UE can handle multiple CSI reporting tasks simultaneously without conflicts, improving overall communication efficiency and reliability. The invention also includes mechanisms to manage the CSI processes, such as activating, deactivating, or modifying their configurations based on network commands or UE capabilities. This approach enhances the flexibility and performance of wireless communication systems by optimizing CSI reporting for different scenarios.
18. The method of claim 13 , wherein the first CSI process is operated jointly with the second CSI process.
A method for wireless communication involves jointly operating a first channel state information (CSI) process and a second CSI process to improve communication efficiency. The first CSI process is configured to measure and report channel state information for a first set of communication resources, while the second CSI process is configured to measure and report channel state information for a second set of communication resources. By operating these processes jointly, the method enables more accurate and efficient channel state feedback, reducing overhead and improving data transmission reliability. The joint operation may involve coordinating measurement timings, sharing reference signals, or combining feedback reports to enhance overall system performance. This approach is particularly useful in wireless systems where multiple CSI processes are required to support different communication scenarios, such as multi-user MIMO or beamforming, while minimizing resource consumption and signaling overhead. The method ensures that the CSI processes work together to provide comprehensive and timely channel state information, optimizing data transmission and reception in dynamic wireless environments.
19. The method of claim 1 , further comprising: generating first CSI for the first CSI reporting configuration and second CSI for the second CSI reporting configuration, wherein a size of the first CSI is greater than a size of the second CSI; and generating the CSI report comprising the first CSI or the second CSI, or both.
This invention relates to wireless communication systems, specifically to methods for generating and reporting channel state information (CSI) in multi-configuration scenarios. The problem addressed is the efficient transmission of CSI when multiple reporting configurations are active, ensuring optimal use of resources while maintaining accuracy. The method involves generating CSI for at least two distinct CSI reporting configurations. The first CSI, associated with a first configuration, has a larger data size compared to the second CSI, which is associated with a second configuration. The method then constructs a CSI report that may include either the first CSI, the second CSI, or both, depending on system requirements or conditions. This approach allows for flexible reporting, balancing between detailed channel feedback and resource efficiency. The invention ensures that the system can adaptively select the appropriate CSI data to include in the report, optimizing performance based on the specific configurations in use. This is particularly useful in scenarios where multiple configurations are active, such as in advanced wireless networks where different reporting schemes may be required for different purposes, such as beamforming, link adaptation, or interference management. The method helps reduce overhead while maintaining accurate channel state information for reliable communication.
20. The method of claim 19 , wherein generating the first CSI comprises determining a first channel quality indicator (CQI) for at least one subband of a first size, and wherein generating the second CSI comprises determining a second CQI for at least one subband of a second size that is larger than the first size.
This invention relates to wireless communication systems, specifically to methods for generating channel state information (CSI) to improve data transmission efficiency. The problem addressed is the need for accurate and efficient channel feedback to support adaptive modulation and coding in wireless networks, particularly in scenarios with varying channel conditions. The method involves generating two types of CSI: a first CSI with fine granularity and a second CSI with coarser granularity. The first CSI is derived by determining a first channel quality indicator (CQI) for at least one subband of a first, smaller size. This provides detailed channel information for specific frequency regions. The second CSI is generated by determining a second CQI for at least one subband of a second, larger size, offering broader channel insights. The larger subband size reduces feedback overhead while still capturing overall channel trends. The method allows a wireless device to report both detailed and summarized channel information, enabling the network to balance accuracy and efficiency in resource allocation. This dual-CQI approach supports adaptive transmission strategies, such as adjusting modulation schemes or power allocation based on varying channel conditions. The invention is particularly useful in systems like 5G and beyond, where dynamic channel conditions and high data rates demand flexible feedback mechanisms.
21. The method of claim 19 , wherein generating the first CSI comprises determining the first CSI according to one of a plurality of reporting modes, and wherein generating the second CSI comprises determining the second CSI according to a subset of the plurality of reporting modes.
This invention relates to wireless communication systems, specifically methods for generating and reporting channel state information (CSI) to improve communication efficiency. The problem addressed is the need for flexible and efficient CSI reporting in dynamic wireless environments, where different reporting modes may be required depending on channel conditions and system requirements. The method involves generating two types of CSI: a first CSI and a second CSI. The first CSI is determined using one of multiple available reporting modes, which may include different configurations for reporting channel quality, rank indication, or other channel characteristics. The second CSI is generated using a subset of these reporting modes, meaning it is restricted to a smaller set of configurations compared to the first CSI. This approach allows for more tailored and efficient CSI reporting, optimizing system performance by adapting to varying channel conditions and reducing unnecessary overhead. The method ensures that the first CSI provides comprehensive channel information while the second CSI focuses on a more limited set of reporting modes, enabling better resource allocation and improved communication reliability. This flexibility is particularly useful in advanced wireless systems where dynamic adaptation to changing environments is critical.
22. The method of claim 19 , further comprising: receiving uplink data for transmission with the CSI report, wherein the second CSI is generated based at least in part on the uplink data.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting in uplink transmissions. The problem addressed is the inefficiency of traditional CSI reporting, which does not account for the impact of uplink data on channel conditions, leading to suboptimal transmission performance. The method involves generating a first CSI report for downlink transmissions and a second CSI report for uplink transmissions. The second CSI is derived based on the uplink data to be transmitted, ensuring the report accurately reflects the channel conditions for the uplink transmission. This allows the transmitter to adjust modulation, coding, or other parameters dynamically, improving data rate and reliability. The process includes receiving uplink data for transmission alongside the CSI report. The second CSI is generated by analyzing the uplink data to assess its impact on the channel, such as interference or signal degradation. This adaptive approach ensures the CSI report is context-aware, optimizing both downlink and uplink communications. By integrating uplink data into CSI generation, the invention enhances spectral efficiency and reduces retransmissions, particularly in high-mobility or interference-prone environments. The method is applicable to 5G and beyond networks, where dynamic channel conditions necessitate real-time adjustments.
23. The method of claim 22 , wherein the CSI report and data are transmitted according to a first interval.
A system and method for wireless communication involves transmitting channel state information (CSI) reports and data between a user equipment (UE) and a base station. The system addresses the challenge of efficiently managing communication resources in wireless networks, particularly in scenarios where accurate channel state information is needed to optimize data transmission. The method includes generating a CSI report at the UE, which contains information about the channel conditions between the UE and the base station. This report is then transmitted to the base station, along with data, according to a predefined interval. The interval ensures that the CSI report and data are sent at regular, synchronized times, improving the reliability and efficiency of the communication link. The system may also include mechanisms for adjusting the interval based on network conditions or user requirements, ensuring optimal performance under varying circumstances. The method may further involve using the CSI report to adapt transmission parameters, such as modulation and coding schemes, to enhance data throughput and reduce errors. This approach helps maintain high-quality communication in dynamic wireless environments.
24. The method of claim 1 , wherein the location of the CSI resource relative to the CSI reporting resource for the CSI report of the TTIs of the first duration differ from the location of the CSI resource relative to the CSI reporting resource for the CSI report associated of the TTIs of the second duration.
This invention relates to wireless communication systems, specifically methods for configuring and reporting channel state information (CSI) in time transmission intervals (TTIs) of different durations. The problem addressed is the need for flexible and efficient CSI reporting mechanisms that adapt to varying TTI lengths, ensuring accurate channel state feedback for both short and long TTIs. The method involves configuring CSI resources and CSI reporting resources for different TTI durations. For TTIs of a first duration, the location of the CSI resource relative to the CSI reporting resource differs from the location of the CSI resource relative to the CSI reporting resource for TTIs of a second duration. This ensures that the CSI reporting is optimized for each TTI length, improving the accuracy and timeliness of channel state feedback. The CSI resources are used to measure the channel state, while the CSI reporting resources are used to transmit the measured CSI back to the network. By adjusting the relative positions of these resources based on TTI duration, the method enhances the reliability of CSI reporting in dynamic communication environments. This approach is particularly useful in systems supporting multiple TTI lengths, such as those using both short and long TTIs for different types of traffic or services.
25. The method of claim 1 , the first reporting configuration comprising reporting based on a first CSI resource, the second reporting configuration comprising reporting based on a second CSI resource, and the CSI resource being one of the first CSI resource or the second CSI resource.
This invention relates to wireless communication systems, specifically methods for configuring and reporting channel state information (CSI) in wireless networks. The problem addressed is the need for efficient and flexible CSI reporting to support advanced communication techniques such as beamforming and multiple-input multiple-output (MIMO) transmissions. Traditional CSI reporting methods may lack flexibility, leading to suboptimal performance or excessive overhead. The invention describes a method for configuring and reporting CSI in a wireless communication system. It involves using at least two different reporting configurations, each associated with a distinct CSI resource. The first reporting configuration is based on a first CSI resource, while the second reporting configuration is based on a second CSI resource. The CSI resource used for reporting can be either the first or the second CSI resource, depending on the system requirements or network conditions. This allows for dynamic adaptation of CSI reporting to improve communication efficiency and reliability. The method ensures that the wireless device can switch between the two CSI resources as needed, enabling better alignment with the current channel conditions or network demands. This flexibility helps optimize data transmission by providing more accurate and timely channel state information to the network, which can then adjust beamforming or MIMO configurations accordingly. The invention enhances the overall performance of wireless communication systems by reducing overhead and improving the accuracy of CSI reporting.
26. The method of claim 25 , the first CSI resource having a first periodicity, and the second CSI resource having a second periodicity.
A method for wireless communication involves configuring and managing channel state information (CSI) resources in a network to improve communication efficiency. The method addresses the challenge of optimizing CSI feedback in dynamic wireless environments where channel conditions change rapidly. It involves configuring at least two CSI resources for a user equipment (UE) or other wireless device, where each CSI resource is associated with a different periodicity. The first CSI resource is configured with a first periodicity, and the second CSI resource is configured with a second periodicity. The periodicities may differ to balance the trade-off between feedback overhead and channel tracking accuracy. The method may also include transmitting configuration information to the UE, specifying the periodicities and other parameters for the CSI resources. The UE then measures the channel using the configured resources and reports the CSI feedback to the network. This approach allows the network to adaptively adjust CSI feedback frequency based on channel conditions, improving spectral efficiency and reducing latency. The method may be applied in various wireless communication systems, including 5G and beyond, to enhance link adaptation and beamforming performance.
27. An apparatus for wireless communication, comprising: a processor; memory coupled with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to: determining a location of a channel state information (CSI) resource to and a CSI reporting resource for a CSI report, the CSI report being based on the CSI resource, the CSI report being based on one of a first CSI reporting configuration or a second CSI reporting configuration, the first CSI reporting configuration being associated with transmission time intervals (TTIs) of a first duration, the second CSI reporting configuration being associated with TTIs of a second duration, wherein the CSI reference resource spans one symbol or two symbols; and transmit the CSI report in accordance with the determination.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting efficiency. The problem addressed is optimizing CSI reporting configurations to balance accuracy and latency in varying transmission time intervals (TTIs). The apparatus includes a processor and memory storing instructions to determine the location of a CSI resource and a CSI reporting resource for generating a CSI report. The CSI report is based on either a first or second CSI reporting configuration, where the first configuration uses TTIs of a first duration and the second uses TTIs of a second duration. The CSI reference resource spans either one or two symbols, allowing flexibility in resource allocation. The apparatus transmits the CSI report according to the determined configuration, enabling adaptive CSI reporting tailored to different TTI durations. This approach enhances spectral efficiency and reduces overhead by dynamically adjusting CSI reporting parameters based on the communication requirements. The solution is particularly useful in 5G and beyond networks where varying TTI lengths are employed to support diverse services with different latency and reliability needs.
28. The apparatus of claim 27 , wherein the instructions are further executable by the processor to: identify a first pattern of first non-zero power (NZP) reference signal resources and first IM resources for the first CSI reporting configuration, wherein the first pattern is associated with a first periodicity and a first offset; and determine a second pattern of second NZP reference signal resources and second IM resources for the second CSI reporting configuration, wherein the second pattern is associated with a second periodicity and a second offset.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting by managing non-zero power (NZP) reference signals and interference measurement (IM) resources. The problem addressed is the need to efficiently configure and distinguish between multiple CSI reporting configurations to optimize resource allocation and interference management. The apparatus includes a processor executing instructions to handle CSI reporting configurations. For a first CSI reporting configuration, the processor identifies a first pattern of NZP reference signal resources and IM resources. This pattern has a defined periodicity and offset, ensuring proper timing and placement of these resources within the communication frame. The NZP reference signals are used for channel estimation, while the IM resources help measure interference levels. For a second CSI reporting configuration, the processor determines a second pattern of NZP reference signal resources and IM resources, with its own periodicity and offset. This allows the system to support multiple CSI reporting configurations simultaneously, each with distinct resource patterns to avoid conflicts and improve accuracy. The apparatus ensures that the resource patterns are distinct and properly synchronized, enhancing the reliability of CSI feedback in multi-user or multi-cell environments. This approach optimizes resource utilization and reduces interference, leading to better communication performance.
29. The apparatus of claim 27 , wherein the instructions are further executable by the processor to: identify a first pattern of first non-zero power (NZP) reference signal resources and first IM resources for the first CSI reporting configuration, wherein the first pattern is associated with a first periodicity and a first offset; and receive an indication of a presence of one or more NZP reference signal resources and one or more IM resources for the second CSI reporting configuration in a TTI of the first duration, wherein the TTI of the first duration comprises a subset of the first NZP reference signal resources and a subset of the first IM resources of the first pattern.
This invention relates to wireless communication systems, specifically to apparatuses and methods for managing channel state information (CSI) reporting configurations in wireless networks. The problem addressed is the efficient allocation and utilization of non-zero power (NZP) reference signal resources and interference measurement (IM) resources in time transmission intervals (TTIs) to support multiple CSI reporting configurations. The apparatus includes a processor and memory storing instructions executable by the processor. The instructions are configured to identify a first pattern of NZP reference signal resources and IM resources for a first CSI reporting configuration, where the pattern has a defined periodicity and offset. The apparatus also receives an indication of the presence of one or more NZP reference signal resources and IM resources for a second CSI reporting configuration within a TTI of a specified duration. This TTI includes a subset of the NZP reference signal resources and IM resources from the first pattern, allowing for flexible and efficient resource allocation to support multiple CSI reporting configurations simultaneously. The apparatus may also determine a second pattern of NZP reference signal resources and IM resources for the second CSI reporting configuration, where the second pattern has a different periodicity and offset than the first pattern. This enables the system to adapt to varying channel conditions and reporting requirements. The apparatus further receives CSI reports based on the identified resources, facilitating accurate channel state estimation and interference management.
30. The apparatus of claim 27 , wherein the instructions are further executable by the processor to: associate a first CSI process with the first CSI reporting configuration and a second CSI process with the second CSI reporting configuration.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting in multi-process environments. The problem addressed is the need to efficiently manage multiple CSI processes when a user equipment (UE) is configured with different CSI reporting configurations, ensuring accurate channel measurements without unnecessary overhead. The apparatus includes a processor and memory storing instructions executable by the processor. The instructions configure the processor to handle CSI reporting for a wireless communication system. The apparatus associates a first CSI process with a first CSI reporting configuration and a second CSI process with a second CSI reporting configuration. This allows the UE to independently manage multiple CSI processes, each linked to a distinct reporting configuration, enabling flexible and efficient channel state reporting. The first and second CSI reporting configurations may include different parameters such as reporting periodicity, resource allocation, or measurement settings. By associating separate CSI processes with these configurations, the apparatus ensures that each process operates independently, reducing interference and improving measurement accuracy. This is particularly useful in scenarios where a UE needs to report CSI for multiple channels or beams simultaneously, such as in advanced wireless systems like 5G or beyond. The invention enhances CSI reporting efficiency by clearly defining the relationship between CSI processes and their respective configurations, optimizing resource utilization and system performance.
31. The apparatus of claim 27 , wherein the instructions are further executable by the processor to: generate first CSI for the first CSI reporting configuration and second CSI for the second CSI reporting configuration, wherein a size of the first CSI is greater than a size of the second CSI; and generate the CSI report comprising the first CSI or the second CSI, or both.
This invention relates to wireless communication systems, specifically to apparatuses and methods for generating and reporting channel state information (CSI) in a manner that optimizes resource usage and reporting efficiency. The problem addressed is the need to balance the granularity and size of CSI reports to ensure accurate channel feedback while minimizing overhead in wireless transmissions. The apparatus includes a processor and memory storing instructions that, when executed, enable the generation of CSI for different reporting configurations. The instructions cause the processor to generate first CSI for a first CSI reporting configuration and second CSI for a second CSI reporting configuration, where the first CSI has a larger size than the second CSI. The apparatus then generates a CSI report that may include either the first CSI, the second CSI, or both, depending on the requirements of the communication system. This allows for flexible reporting, where more detailed CSI (larger size) can be provided when needed, while more compact CSI (smaller size) can be used to reduce overhead in scenarios where less detailed feedback is sufficient. The apparatus may also determine the reporting configuration based on system conditions, such as channel quality, user equipment (UE) capabilities, or network requirements, to optimize performance and efficiency. This approach ensures that CSI reporting adapts dynamically to varying communication needs, improving overall system efficiency and reliability.
32. A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable by a processor to: determining a location of a channel state information (CSI) resource relative to a CSI reporting resource for a CSI report, the CSI report being based on the CSI resource, the CSI report being based on one of a first CSI reporting configuration or a second CSI reporting configuration, the first CSI reporting configuration being associated with transmission time intervals (TTIs) of a first duration, the second CSI reporting configuration being associated with TTIs of a second duration, wherein the CSI reference resource spans one symbols or two symbols; and transmit the CSI report in accordance with the determination.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting efficiency. The problem addressed is optimizing CSI reporting configurations to balance accuracy and latency, particularly in systems with varying transmission time intervals (TTIs). The solution involves dynamically determining the location of a CSI resource relative to a CSI reporting resource based on the CSI reporting configuration. The CSI report is generated using either a first configuration with longer TTIs or a second configuration with shorter TTIs. The CSI reference resource spans either one or two symbols, depending on the configuration. The system adjusts the CSI reporting timing based on this determination to ensure accurate channel state feedback while minimizing reporting delays. This approach enhances spectral efficiency and reduces overhead in wireless networks by adapting CSI reporting to different TTI durations, improving overall system performance.
33. The non-transitory computer-readable medium of claim 32 , wherein the instructions are further executable by the processor to: identify a first pattern of first non-zero power (NZP) reference signal resources and first IM resources for the first CSI reporting configuration, wherein the first pattern is associated with a first periodicity and a first offset; and determine a second pattern of second NZP reference signal resources and second IM resources for the second CSI reporting configuration, wherein the second pattern is associated with a second periodicity and a second offset.
This invention relates to wireless communication systems, specifically improving channel state information (CSI) reporting by managing non-zero power (NZP) reference signals and interference measurement (IM) resources. The problem addressed is the need for efficient resource allocation to support multiple CSI reporting configurations without causing interference or resource conflicts. The invention involves a computer-readable medium storing instructions for a processor to manage CSI reporting configurations. The system identifies a first pattern of NZP reference signal resources and IM resources for a first CSI reporting configuration, where the pattern has a defined periodicity and offset. It then determines a second pattern of NZP reference signal and IM resources for a second CSI reporting configuration, with a different periodicity and offset. This ensures that multiple CSI reporting configurations can coexist without overlapping resources, reducing interference and improving communication reliability. The patterns are dynamically adjusted based on system requirements, allowing flexible and efficient resource allocation. The solution enhances spectral efficiency and supports advanced wireless communication techniques, such as beamforming and multi-user MIMO, by optimizing resource usage for accurate channel state reporting.
34. The non-transitory computer-readable medium of claim 32 , wherein the instructions are further executable by the processor to: associate a first CSI process with the first CSI reporting configuration and a second CSI process with the second CSI reporting configuration.
In wireless communication systems, channel state information (CSI) reporting is essential for optimizing data transmission by adapting to varying channel conditions. However, managing multiple CSI reporting configurations can be inefficient, leading to redundant processes and increased overhead. This invention addresses the problem by improving CSI reporting efficiency in wireless networks. The invention involves a non-transitory computer-readable medium storing instructions that, when executed by a processor, enable a wireless communication device to manage CSI reporting configurations. Specifically, the instructions allow the device to associate distinct CSI processes with different CSI reporting configurations. For example, a first CSI process is linked to a first CSI reporting configuration, while a second CSI process is linked to a second CSI reporting configuration. This association ensures that each CSI process operates independently, reducing conflicts and improving resource utilization. The system may also prioritize or schedule these processes based on network conditions, further enhancing performance. By separating CSI processes, the invention minimizes interference and optimizes the use of available bandwidth, leading to more reliable and efficient wireless communication.
35. The non-transitory computer-readable medium of claim 32 , wherein the instructions are further executable by the processor to: generate first CSI for the first CSI reporting configuration and second CSI for the second CSI reporting configuration, wherein a size of the first CSI is greater than a size of the second CSI; and generate the CSI report comprising the first CSI or the second CSI, or both.
This invention relates to wireless communication systems, specifically to methods for generating and reporting channel state information (CSI) in wireless networks. The problem addressed is the need for efficient CSI reporting that balances accuracy and overhead, particularly in scenarios where different CSI reporting configurations may be required for different purposes. The invention describes a system where a wireless device generates two types of CSI: first CSI for a first CSI reporting configuration and second CSI for a second CSI reporting configuration. The first CSI is larger in size than the second CSI, indicating that it may contain more detailed or comprehensive channel information. The wireless device then generates a CSI report that includes either the first CSI, the second CSI, or both, depending on the requirements of the communication system. This allows the system to adapt the level of detail in CSI reporting based on network conditions, device capabilities, or other factors, optimizing both performance and resource usage. The invention also includes mechanisms for determining which CSI to include in the report, ensuring that the most relevant information is transmitted while minimizing unnecessary overhead. This approach is particularly useful in advanced wireless systems where multiple CSI reporting configurations may be active simultaneously, such as in multi-user or multi-antenna environments. By dynamically selecting the appropriate CSI, the system can improve spectral efficiency and overall communication reliability.
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August 7, 2018
April 5, 2022
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